1-[2-(1H-indol-3-yl)ethyl]-3,3-dimethylpyridine-2,4-dione

3,3-dimethyl-7,12-dihydro-6H-indolo[2,3-a]quinolizine-2,4-dione

1-(2-phenyl-1,3-dithian-2-yl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole

4-ethyl-2-[2-(1H-indol-3-yl)ethyl]-1-oxa-2-azaspiro[2.4]heptane

2-Methyl-2-propanyl [2-(1H-indol-3-yl)-2-oxoethyl]carbamate